Home (Vascular plants)
Home  
 
 
Home » Biology » Vascular plants


 

Vascular plants

Biology Vascular cambiumVascular system

vascular plants: plants that contain specialized tissues to transport fluids.
vascular plants with protected seeds: angiosperms; the most developed and complex vascular plants.
Full article ...

 


vascular plants (tracheophytes)
seedless vascular plants
Lycopodiophyta - clubmosses
Equisetophyta - horsetails
Pteridophyta - "true" ferns
Psilotophyta - whisk ferns
Ophioglossophyta - adderstongue ferns ...

Vascular Plants
chlorophyll a, chlorphyll b, carotenoids
Vascular plants appeared by 350 million years ago, with forests soon following by 300 million years ago. Seed plants next evolved, with flowering plants appearing around 140 million years ago.

vascular plants Plants possessing organized vascular tissues.
vascular system 1. A specialized network of vessels for the circulation of fluids throughout the body tissue of an animal.
2. The system of vascular tissue in plants.

vascular plants
Plants with vascular tissue, consisting of all modern species except the mosses and their relatives.
vascular tissue ...

Vascular plants first appeared during the Silurian period, and by the Devonian had diversified and spread into many different land environments. They have a number of adaptations that allowed them to overcome the limitations of the bryophytes.

xylem In vascular plants, the tissue that conducts water and minerals; xylem consists, in various plants, of tracheids, vessel members, fibers, and parenchyma.

Cryptogams: nonvascular plants such as lichens and mosses that make up the ground or surface layer of vegetation.

The more primitive plants are dependent on living in water either totally or partially and the more advanced vascular plants have found ways to live independently on land.

Vascular plants can be divided into seedless (ex. ferns) and seeded. Vascular seeded plants can be divided into gymnosperms (ex. pines) and flowering plants (angiosperms). Angiosperms can be divided into monocots and dicots.

If you look at a single acre of prairie, you'll find about 200 species of flowering and other vascular plants in it. If you look in the soil, you'll find at least 5,000 different species of bacteria, probably a thousand or so species of fungi.

A superclass in the sperm plants (Spermatophyta) division belonging to the vascular plants (Tracheophyta) phylum of the plant kingdom.

The order of the genes between the arrows (~6:30 to ~10:00) is also found in the lycopsids. But in all other vascular plants, this region is inverted and the order of the genes is precisely reversed.

leaf -- An organ found in most vascular plants; it consists of a flat lamina (blade) and a petiole (stalk). Many flowering plants have additionally a pair of small stipules near the base of the petiole.

transfer of soluble materials through the sieve tubes of the phloem of vascular plants; the exchange of parts of chromosomes
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...

stele. The central cylinder inside the cortex of the roots and stems of vascular plants; contains the vascular or conducting tissue.
sticktight. Nut that remains on the tree after harvest (also called mummy); nut with husk firmly adhering to shell.

vascular bundle
A structure of vascular plants that runs up through the roots, into the stems, and out into the leaves, and whose function is transport of water, ions and dissolved organic solutes within the plant.

Water has the ability for capillary action, the tendency to move up a narrow tube against gravity, a property relied upon by vascular plants, such as trees.

See also: Plant, Cells, Organ, Tissue, Animal